The RA + osteoporosis group had a higher age range (63 vs. 56 years, p < 0.001), lower BMI (26.6 vs. 29.2 kg/m2, p < 0.001), longer period from the onset of menopause (17 vs. 10 years, p < 0.001), and higher ESR levels (28 vs. 23 mm/h, p = 0.006). Here, ESR1 is linked to rheumatoid arthritis.